Facet 9.3144 Ignition Knock (Detonation) Sensor

Reliable Ignition Knock Sensor for Audi, Porsche, and Volkswagen

The Facet 9.3144 Ignition Knock (Detonation) Sensor is designed to accurately detect engine knocking in select Audi, Porsche, and Volkswagen models. This sensor helps maintain optimal engine performance by providing precise feedback to the engine control unit.

• Compatible with Audi A3 Quattro, A4, A4 Quattro, A8 Quattro, S6, S7, S8, and TT Quattro
• Fits Porsche Cayenne and RS7 models
• Suitable for Volkswagen Beetle, CC, Eos, Golf, Jetta, Passat, Phaeton, Q7, R32, Touareg, and TT
• Part number 9.3144 ensures exact replacement and fitment
• Designed to detect engine detonation for improved combustion control

Product Overview and Functionality

The Facet 9.3144 ignition knock sensor monitors vibrations caused by engine knocking or detonation. By detecting these irregular combustion events, the sensor sends signals to the engine control unit (ECU), allowing it to adjust ignition timing and fuel delivery. This process helps prevent engine damage and maintains fuel efficiency. The sensor is engineered to meet OEM specifications for the listed Audi, Porsche, and Volkswagen models, ensuring reliable performance and compatibility.

Common Applications and Problem Resolution

• Prevents engine knocking and pinging that can cause damage
• Helps maintain smooth engine operation and performance
• Reduces risk of poor fuel economy due to improper ignition timing
• Addresses check engine light triggers related to knock sensor faults
• Improves overall engine longevity by enabling timely ECU adjustments

Installation Notes and Tips

When installing the Facet 9.3144 knock sensor, ensure the engine is cool and disconnect the battery to avoid electrical hazards. Locate the existing knock sensor on the engine block, typically near the cylinder head. Remove the old sensor carefully to avoid damaging the mounting threads. Install the new sensor and torque it to the manufacturer’s specifications. Reconnect the electrical connector securely and clear any diagnostic trouble codes after installation.

Quality Assurance and Warranty Information

Facet manufactures the 9.3144 ignition knock sensor to meet strict quality standards, ensuring durability and accurate performance. While specific warranty details may vary, Facet products generally come with a limited warranty covering defects in materials and workmanship. Always verify warranty terms with the supplier or manufacturer documentation.